Hey I like the idea of keeping a Datsun as a Datsun too, but I want a n/a engine with some aftermarket support, makes decent power and revs off it's tits.

Plus i've got a 4ag bigport head waiting for a bottom end and a t50 all looking for an enginebay to climb into.

I can answer question 3 !
The bluebird( ca20 engine )series 3 came with two types of 5speeds.A borg warner & a jap 5speed.
I know for a fact that the jap 5speed bolts straight up to the ca18 & sits the gearstick approx. 40-50mm further rearward of the original location(in a ute).

The pintara used the borg warner 5speed same as the bluebird ones. Stay away from these B/W boxes as they`re not very strong


Hope this is helpful ?

well while on gearboxes can anyone give ideas on speedo drive for a ca18det box to 1200 i know the 910 speedo cable but which is best to use speedo drive from 910 or from a skyline ??thanks